One Person Company (OPC) is a popular business structure in India for solo entrepreneurs. Despite being a single-owner entity, OPC is required to follow annual compliance regulations under the Companies Act, 2013.
Among the most important is the OPC annual return filing. This article will help you understand the important forms and processes required.

Why is the OPC Annual Return Filing Important?
- It ensures legal compliance.
- Avoids hefty late fees and disqualification of the director.
- Maintains the transparency and credibility of the company.
- Required for future funding, loan approvals, or conversion into a Private Limited Company.
Where to File the OPC Annual Return?
All OPC annual returns must be filed online on the official MCA (Ministry of Corporate Affairs) portal.
Which Forms are Used for OPC Annual Return Filing?
- Form MGT-7A: Annual return for OPCs (introduced specifically for OPCs and small companies).
- Form AOC-4: Filing of financial statements and Board's report.
- Form ADT-1: Auditor appointment (only once unless there is a change).
Step-by-Step Process to File OPC Annual Return Online
Step 1: Preparation of Financial Statements
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Get your balance sheet, profit & loss account, and notes to accounts prepared and audited.
Step 2: Filing Form AOC-4
- Upload financial statements within 180 days from the end of the financial year.
- Attach the Auditor's Report and Board's Report.
Step 3: Filing Form MGT-7A
- File the annual return within 60 days from the date of the AGM (AGM not required for OPC, but the timeline still applies).
- Mention company details, shareholding, and compliance status.
Step 4: DSC and Professional Certification
- Ensure the forms are signed using the Digital Signature Certificate (DSC) of the director.
- A Company Secretary (in practice) or a CA must digitally certify the forms.
Due Dates for OPC Annual Return Filing
- Form AOC-4: To be filed within 180 days from the end of the financial year.
- Form MGT-7A: To be filed within 60 days from the date of AGM or the end of the financial year (AGM not mandatory for OPC).
Conclusion
OPC annual return filing is a simple yet crucial task for every One Person Company. While compliance is lesser compared to private limited companies, missing deadlines can still lead to penalties.